Negative pressure adsorption component and anorectal stapler

Abstract

The present invention discloses a negative pressure adsorption component and an anorectal stapler. The negative pressure adsorption component is used as a matching accessory of the anorectal stapler. The negative pressure adsorption component comprises a main body; the main body is suitable for being connected to the head of the anorectal stapler, and a negative pressure cavity into which negative pressure can be introduced is formed between the main body and the anorectal stapler and the stapler assembly of the head of the anorectal stapler; the main body is provided with at least one adsorption port which is connected to the negative pressure cavity and is suitable for being operated to gradually enlarge to adsorb anastomosed tissue or close. The negative pressure adsorption component is used in conjunction with the anorectal stapler, and can cooperate well with the anorectal stapler to adsorb tissue that needs to be anastomosed, greatly reducing the operation time and the workload of doctors.

Description

Technical Field

[0001] The invention relates to a negative pressure adsorption component and an anorectal stapler. Background Art

[0002] At present, TST selective hemorrhoidectomy is a treatment method designed according to the formation principle of human hemorrhoids. During the treatment process, it can accurately remove the prolapsed part of the mucosa on the hemorrhoids, and reverse the pathological cells from the pathological process of hemorrhoids to the development of normal cells. In this way, the anal cushion tissue and mucosal layer are retained to the greatest extent, and no effect is produced on the normal physiological function of the human anorectal system. The trauma is minimized to the greatest extent. Because it is a selective resection treatment, the patient's recovery time after treatment is also shorter. The traditional anorectal stapler requires the doctor to make a purse during the operation and pull the prolapsed part of the mucosa into the stapler before it can be fired. There is uneven pulling force during the pulling of the tissue, and sometimes the pulling is not in place or over-pulling, resulting in unsatisfactory cutting and easy recurrence of the disease. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a negative pressure adsorption component, which is used in conjunction with an anorectal stapler and can cooperate well with the anorectal stapler to adsorb tissue that needs to be anastomosed, greatly reducing the operation time and the workload of doctors.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a negative pressure adsorption component, which is used as a matching accessory of an anorectal stapler, and comprises a main body;

[0005] The main body is suitable for being connected to the head of the anorectal stapler, and forms a negative pressure cavity into which negative pressure can be introduced between the main body, the anorectal stapler head and the staple cartridge assembly;

[0006] The main body is provided with at least one adsorption opening which is in communication with the negative pressure cavity and is suitable for being operated to gradually become larger to adsorb the anastomosed tissue or to be closed.

[0007] Furthermore, the subject includes:

[0008] An inner support sleeve, wherein the inner support sleeve is provided with at least one inner opening communicating with the negative pressure chamber;

[0009] An outer support sleeve, the outer support sleeve is movably connected to the inner support sleeve, the outer support sleeve is provided with a sealing portion corresponding to the corresponding inner port and cooperating to form a suction port, and the outer support sleeve and the inner support sleeve have a fully open position and a fully closed position during the relative movement of the outer support sleeve and the inner support sleeve; wherein,

[0010] When in the fully closed position, the inner opening is sealed by the corresponding sealing portion;

[0011] When operating from the fully closed position to the fully open position, the sealing portion gradually leaves the corresponding inner opening to gradually open the inner opening so that the suction opening gradually becomes larger.

[0012] Further, the outer support sleeve is rotatably sleeved on the inner support sleeve;

[0013] The outer support sleeve is rotated relative to the inner support sleeve to close or gradually enlarge the suction port.

[0014] Furthermore, the outer support sleeve is also provided with a matching opening corresponding to the corresponding inner opening;

[0015] When in the fully open position, the sealing portion and the corresponding inner opening are in a misaligned state, and the matching opening and the corresponding inner opening are in an aligned state.

[0016] A rotation limiting mechanism is also provided between the outer support sleeve and the inner support sleeve, which is suitable for limiting the relative rotation between the outer support sleeve and the inner support sleeve when in the fully closed position or the fully open position.

[0017] Furthermore, the rotation limiting mechanism comprises:

[0018] A limiting groove is formed on one of the inner support sleeve and the outer support sleeve, and a fully open retaining wall and a fully closed retaining wall are provided on both sides of the limiting groove in the circumferential direction;

[0019] A limiting protrusion formed on the remaining one of the inner support sleeve and the outer support sleeve and matched in the limiting groove;

[0020] When in the fully open position, the limiting protrusion and the fully open retaining wall are in abutment with each other;

[0021] When in the fully closed position, the limiting protrusion and the fully closed stop wall are in abutment with each other.

[0022] Furthermore, in order to facilitate the rotation of the outer support sleeve or the inner support sleeve, a rotating wrench portion is provided on at least one of the outer support sleeve and the inner support sleeve.

[0023] Furthermore, the negative pressure adsorption component also includes a sealing ring, which is sealingly connected to the tail of the inner support sleeve, and is provided with a hole suitable for sealingly cooperating with the stapler assembly of the anorectal stapler after the main body is connected to the head of the anorectal stapler;

[0024] Furthermore, when the main body is connected to the head of the anorectal stapler, a negative pressure chamber is formed between the inner support sleeve, the sealing ring, the anvil seat and the staple magazine assembly.

[0025] Furthermore, an air injection valve is provided on the main body, and negative pressure is provided to the negative pressure chamber through the air injection valve.

[0026] The present invention also provides an anorectal stapler, which comprises the negative pressure adsorption component.

[0027] After adopting the above technical scheme, the outer support sleeve of the present invention is placed in the appropriate position of the anus (surgical cutting position), the adjusting nut of the anorectal stapler is rotated so that the distance between the nail support seat and the nail magazine seat of the nail magazine assembly is ≥ the axial width of the inner opening, and the anorectal stapler is inserted into the inner support sleeve equipped with the sealing ring and the air injection valve until the nail support seat cooperates with the head end of the inner support sleeve. At this time, ensure that the outer support sleeve and the inner support sleeve are relatively operated to be in the fully closed position, and the air injection valve is connected to the negative pressure machine. When the pressure reaches 0.08-0.1 MPa, slowly rotate the inner support sleeve or the outer support sleeve to enlarge the suction port formed between the inner support sleeve and the outer support sleeve, so that the hemorrhoidal mucosa (tissue to be anastomosed) is slowly sucked between the nail magazine assembly and the nail support seat. When the inner support sleeve and the outer support sleeve are rotated until the limit position, and the hemorrhoidal mucosa has filled the suction port, rotate the adjusting nut in the opposite direction to squeeze the tissue. When it is rotated to the firing position of the anorectal stapler, hold the firing handle of the anorectal stapler to complete the cutting and suturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a three-dimensional diagram of the negative pressure adsorption component of the present invention;

[0029] Figure 2 It is a structural cross-sectional view of the negative pressure adsorption component of the present invention;

[0030] Figure 3 is a three-dimensional diagram of the inner support sleeve of the present invention;

[0031] Figure 4 is a three-dimensional diagram of the outer support sleeve of the present invention;

[0032] Figure 5 This is a diagram showing the usage status of the negative pressure adsorption component of the present invention in combination with an anorectal stapler. DETAILED DESCRIPTION

[0033] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0034] like Figures 1 to 5 As shown, a negative pressure adsorption component is used as a matching accessory of an anorectal stapler 10, and includes a main body;

[0035] The main body is suitable for being connected to the head of the anorectal stapler 10, and forms a negative pressure cavity 20 into which negative pressure can be introduced between the anorectal stapler 10a and the staple cartridge assembly 10b of the head of the anorectal stapler 10;

[0036] The main body is provided with three suction ports which are connected to the negative pressure chamber 20 and are suitable for being operated to gradually become larger to suction the anastomosed tissue or to be closed.

[0037] Of course, the number of adsorption ports is not limited to three, and may be other numbers.

[0038] Specifically, Figure 1 , 2 As shown, the subject includes:

[0039] The inner support sleeve 1 is provided with three inner ports 11 communicating with the negative pressure chamber 20;

[0040] The outer support sleeve 2 is movably connected to the inner support sleeve 1. The outer support sleeve 2 is provided with a sealing portion 21 which is arranged corresponding to the corresponding inner port 11 and cooperates to form a suction port. The outer support sleeve 2 and the inner support sleeve 1 have a fully open position and a fully closed position during the relative movement process of being operated; wherein,

[0041] When in the fully closed position, the inner opening 11 is sealed by the corresponding sealing portion 21;

[0042] When operating from the fully closed position to the fully open position, the sealing portion 21 gradually moves away from the corresponding inner opening 11 to gradually open the inner opening 11 so that the suction opening gradually becomes larger.

[0043] There are three inner ports 11 along the circumference of the inner support sleeve 1, and three sealing parts 21 along the circumference of the outer support sleeve 2. The three inner ports 11 and the three sealing parts 21 cooperate to form three suction ports. The arc angle corresponding to each inner port 11 is 60°.

[0044] In this embodiment, the head end of the inner support sleeve 1 is a structure that matches the anorectal stapler, and the distance H from the end surface of the inner opening 11 to the head end of the inner support sleeve 1 is consistent with the axial length h of the anorectal stapler 10a, which can of course be slightly larger.

[0045] Specifically, Figure 1 As shown, the outer support sleeve 2 is rotatably sleeved on the inner support sleeve 1;

[0046] The outer support sleeve 2 is rotated relative to the inner support sleeve 1 so that the suction port is closed or gradually enlarged.

[0047] The outer support sleeve 2 is also provided with a matching opening 22 corresponding to the corresponding inner opening 11;

[0048] When in the fully open position, the sealing portion 21 and the corresponding inner opening 11 are in a misaligned state, and the matching opening 22 and the corresponding inner opening 11 are in an aligned state.

[0049] Specifically, Figures 1 to 4As shown, a rotation limiting mechanism is also provided between the outer support sleeve 2 and the inner support sleeve 1, which is suitable for limiting the relative rotation between the outer support sleeve 2 and the inner support sleeve 1 when in the fully closed position or the fully open position.

[0050] The structure of the rotation limiting mechanism may be as follows:

[0051] A limiting groove 12 is formed on the inner support sleeve 1, and a fully open retaining wall 12a and a fully closed retaining wall 12b are provided on both sides of the limiting groove 12 in the circumferential direction;

[0052] A limiting protrusion 23 formed on the outer support sleeve 2 and fitted into the limiting groove 12;

[0053] When in the fully open position, the limiting protrusion 23 and the fully open retaining wall 12a abut against each other;

[0054] When in the fully closed position, the limiting protrusion 23 and the fully closed stop wall 12b are in abutment with each other.

[0055] Of course, the limiting groove 12 can also be set on the outer support sleeve 2, and the limiting protrusion 23 can also be set on the inner support sleeve 1.

[0056] Specifically, Figure 1 As shown, a rotating wrench portion 24 is provided on the outer support sleeve 2. The outer support sleeve 2 can be fixed or rotated by rotating the wrench portion 24.

[0057] Specifically, Figure 1 As shown, the main body also includes a sealing ring 3, which is sealingly connected to the tail of the inner support sleeve 1, and the sealing ring 3 is provided with a hole suitable for sealingly cooperating with the stapler assembly 10b of the anorectal stapler 10 after the main body is connected to the head of the anorectal stapler 10;

[0058] When the main body is connected to the head of the anorectal stapler 10, a negative pressure chamber 20 is formed between the inner support sleeve 1, the sealing ring 3, the anvil 10a and the staple cartridge assembly 10b.

[0059] In this embodiment, the sealing ring 3 can be connected to the inner support sleeve 1 through threaded sealing.

[0060] Specifically, Figure 1 As shown, the main body is also provided with an air injection valve 4, through which negative pressure is provided to the negative pressure chamber 20. The air injection valve 4 can be connected to an external negative pressure machine.

[0061] Place the outer support sleeve 2 in the appropriate position of the anus (surgical incision position), rotate the adjusting nut 10c of the anorectal stapler 10 so that the distance between the anvil seat 10a and the staple cartridge seat of the staple cartridge assembly 10b is ≥ the axial width of the inner opening 11, and insert the anorectal stapler 10 into the inner support sleeve 1 equipped with the sealing ring 3 and the air injection valve 4 until the anvil seat 10a cooperates with the head end of the inner support sleeve 1. At this time, ensure that the outer support sleeve 2 and the inner support sleeve 1 are relatively operated to the fully closed position, and the air injection valve 4 is connected to the negative pressure machine. When the pressure reaches 0.08-0.1 When the pressure is 2400 g / cm3, slowly rotate the inner support sleeve 1 or the outer support sleeve 2 to enlarge the suction port formed between the inner support sleeve 1 and the outer support sleeve 2, so that the hemorrhoidal mucosa (tissue to be anastomosed) is slowly sucked into the space between the stapler assembly 10b and the stapler seat 10a. When the inner support sleeve 1 and the outer support sleeve 2 are rotated to the limit position and the suction port has been filled with the hemorrhoidal mucosa, rotate the adjusting nut 10c in the reverse direction to squeeze the tissue. When it is rotated to the firing position of the anorectal stapler 10, hold the firing handle 10d of the anorectal stapler 10 to complete the cutting and suturing.

[0062] Embodiment 2

[0063] like Figure 5 As shown, an anorectal stapler includes the negative pressure adsorption component in embodiment one.

[0064] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0065] In the description of the present invention, it is necessary to understand that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0066] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0068] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0069] In the present invention, unless otherwise clearly specified and limited, a first feature being above or below a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being above, above, and above a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being below, below, and below a second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

Claims

1. A negative pressure adsorption component, used as a matching accessory of an anorectal stapler (10), characterized in that: It includes the subject; The main body is suitable for being connected to the head of the anorectal stapler (10), and forms a negative pressure cavity (20) capable of being filled with negative pressure between the anorectal stapler (10a) and the staple cartridge assembly (10b) at the head of the anorectal stapler (10); The main body is provided with at least one suction port which is in communication with the negative pressure chamber (20) and is adapted to be operated to gradually enlarge so as to suction the anastomosed tissue or to be closed; The subjects include: An inner support sleeve (1), the inner support sleeve (1) being provided with at least one inner opening (11) communicating with the negative pressure chamber (20); An outer support sleeve (2), the outer support sleeve (2) being movably connected to the inner support sleeve (1), the outer support sleeve (2) being provided with a sealing portion (21) arranged corresponding to the corresponding inner opening (11) and cooperating to form a suction opening, the outer support sleeve (2) and the inner support sleeve (1) having a fully open position and a fully closed position during relative movement when being operated; wherein: When in the fully closed position, the inner opening (11) is sealed by the corresponding sealing portion (21); When operating from the fully closed position to the fully open position, the sealing portion (21) gradually moves away from the corresponding inner opening (11) to gradually open the inner opening (11) so that the suction opening gradually becomes larger; The outer support sleeve (2) is rotatably sleeved on the inner support sleeve (1); By rotating the outer support sleeve (2) relative to the inner support sleeve (1) so that the suction port is closed or gradually enlarged; The main body is also provided with an air injection valve (4), through which negative pressure is provided to the negative pressure chamber (20); The outer support sleeve (2) is also provided with a matching opening (22) arranged corresponding to the corresponding inner opening (11); When in the fully open position, the sealing portion (21) and the corresponding inner opening (11) are in a misaligned state, and the matching opening (22) and the corresponding inner opening (11) are in an aligned state; A rotation limiting mechanism is also provided between the outer support sleeve (2) and the inner support sleeve (1), which is suitable for limiting the relative rotation between the outer support sleeve (2) and the inner support sleeve (1) when in the fully closed position or the fully open position; The rotation limiting mechanism comprises: A limiting groove (12) is formed on one of the inner support sleeve (1) and the outer support sleeve (2), wherein two circumferential sides of the limiting groove (12) are provided with a fully open retaining wall (12a) and a fully closed retaining wall (12b); A limiting protrusion (23) formed on the remaining one of the inner support sleeve (1) and the outer support sleeve (2) and engaged with the limiting groove (12); When in the fully open position, the limiting protrusion (23) and the fully open retaining wall (12a) are in abutment with each other; When in the fully closed position, the limiting protrusion (23) and the fully closed retaining wall (12b) are in abutment with each other; The outer support sleeve (2) and the inner support sleeve (1) are relatively operated to be in a fully closed position, and the air injection valve (4) is connected to the negative pressure machine. When the pressure reaches 0.08-0.1 MPa, the inner support sleeve (1) or the outer support sleeve (2) is slowly rotated to enlarge the suction port formed between the inner support sleeve (1) and the outer support sleeve (2), so that the tissue to be anastomosed is slowly sucked into between the nail magazine assembly (10b) and the nail support seat (10a), until the inner support sleeve (1) and the outer support sleeve (2) are rotated to a limit position.

2. The negative pressure adsorption assembly according to claim 1, characterized in that: At least one of the outer support sleeve (2) and the inner support sleeve (1) is provided with a rotating wrench portion (24).

3. The negative pressure adsorption assembly according to claim 1, characterized in that: The main body further comprises a sealing ring (3), the sealing ring (3) being sealingly connected to the rear end of the inner support sleeve (1), the sealing ring (3) being provided with a hole suitable for sealingly cooperating with the stapler assembly (10b) of the anorectal stapler (10) after the main body is connected to the head of the anorectal stapler (10); When the main body is connected to the head of the anorectal stapler (10), a negative pressure chamber (20) is formed between the inner support sleeve (1), the sealing ring (3), the anvil seat (10a) and the staple cartridge assembly (10b).

4. An anorectal stapler, characterized in that: It comprises the negative pressure adsorption component as claimed in any one of claims 1 to 3.

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